# C1.Win.FlexGrid.C1FlexGridBase.OnChangeScrollBarPosition

## Content

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<h1 id="C1_Win_FlexGrid_C1FlexGridBase_OnChangeScrollBarPosition_" data-uid="C1.Win.FlexGrid.C1FlexGridBase.OnChangeScrollBarPosition*">OnChangeScrollBarPosition Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Win_FlexGrid_C1FlexGridBase_OnChangeScrollBarPosition_" data-uid="C1.Win.FlexGrid.C1FlexGridBase.OnChangeScrollBarPosition*"></a>
<h4 id="C1_Win_FlexGrid_C1FlexGridBase_OnChangeScrollBarPosition_System_Int32_System_Boolean_System_Int32_System_Int32_" data-uid="C1.Win.FlexGrid.C1FlexGridBase.OnChangeScrollBarPosition(System.Int32,System.Boolean,System.Int32,System.Int32)">OnChangeScrollBarPosition(int, bool, int, int)</h4>
<div class="markdown level1 summary"><p>Calculates the new position of a scrollbar in response to a user command.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">protected override int OnChangeScrollBarPosition(int cmd, bool verticalBar, int curPos, int trackPos)</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overrides Function OnChangeScrollBarPosition(cmd As Integer, verticalBar As Boolean, curPos As Integer, trackPos As Integer) As Integer</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">cmd</span></td>
      <td><p>Scroll command (SB_LINEUP, etc).</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><span class="parametername">verticalBar</span></td>
      <td><p>True for the vertical scrollbar, false for the horizontal scrollbar.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">curPos</span></td>
      <td><p>Current scrollbar position.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">trackPos</span></td>
      <td><p>Scrollbar thumb position.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><p>The new position for the scrollbar.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="C1.Win.FlexGrid.Util.BaseControls.ScrollableControl.OnChangeScrollBarPosition.html#C1_Win_FlexGrid_Util_BaseControls_ScrollableControl_OnChangeScrollBarPosition_System_Int32_System_Boolean_System_Int32_System_Int32_">ScrollableControl.OnChangeScrollBarPosition(int, bool, int, int)</a></div>
<h5 id="C1_Win_FlexGrid_C1FlexGridBase_OnChangeScrollBarPosition_System_Int32_System_Boolean_System_Int32_System_Int32__remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>Derived classes may override this method to customize the scrolling behavior.</p>
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